Norbert Wiener in the Early 1950s

Memories about Norbert Wiener are presented by the author who had the opportunity to meet him in Paris (1951 and 1953), then at MIT and in his country house in New Hampshire in 1954. The foundation of the “Cercle d’Etudes Cybernétiques” is evoked as well as many statements made by Wiener about himself, and his researches on hidden variables in quantum mechanics and other subjects.